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Acid adding device with accurate and automatic pH value control function

An acid adding device and precise technology, applied in the direction of improving process efficiency, can solve problems such as unsolved control hysteresis, and achieve the effects of improving production operation environment, high acid adding accuracy and stable operation.

Active Publication Date: 2013-03-20
CHENZHOU CITY JINGUI SILVER IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

What the device monitors and controls is the pH value of the return water, not the pH value of the entire cooling tower pool, so the hysteresis of the control is still not solved

Method used

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  • Acid adding device with accurate and automatic pH value control function

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Experimental program
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Embodiment Construction

[0026] Describe the present invention in detail with specific embodiment below in conjunction with accompanying drawing:

[0027] An acid adding device that precisely and automatically controls the pH value, including an acid liquid storage tank 2, an acid liquid distributor 10 and an acid liquid control system; it is characterized in that: the acid liquid distributor 10 is installed in the reaction vessel 5; the acid liquid storage tank The set position should be higher than the acid liquid distributor 10, and the acid liquid storage tank 2 is connected to the acid liquid distributor 10 through the manual stop valve 4, the electric butterfly valve 6, the infusion tube 7 and the movable sleeve 8 in sequence; the acid liquid storage tank There is a supply pipeline 1 on the top, and a liquid level gauge 3 is arranged on the side of the acid storage tank; the acid distributor 10 is composed of six arc-shaped distribution pipes bent into a 60° arc, a tee 9 and five An annular pipe...

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PUM

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Abstract

Belonging to the technical field of hydrometallurgical equipment, the invention relates to an acid adding device with an accurate and automatic pH value control function. The device comprises an acid solution storage tank (2), an acid solution distributor (10) and an acid solution control system. The acid solution distributor (10) is installed inside a reaction container (5). The acid solution storage tank (2) is arranged at a position higher than the acid solution distributor (10), and is in connection with the acid solution distributor (10) through a hand stop valve (4), an electric butterfly valve (6), an infusion tube (7) and a movable sleeve (8) in order. By employing an advanced on-line real time control technology, the device provided in the invention generates no acid fog while adding a high concentration acid solution, and has the advantages of high pH value control precision, low labor intensity, simple structure and reliable operation.

Description

technical field [0001] The invention relates to an automatic acid adding device for high-concentration acid in the technical field of hydrometallurgical equipment, in particular to an acid adding device for accurately and automatically controlling the pH value. Background technique [0002] In the hydrometallurgical production process, the leaching of metal ions is often carried out in an acidic system, and the pH value is an important indicator of reaction conditions. At present, the operation of adding acid to high-concentration acid solution is mainly realized by manual, pipeline spraying and other methods. The acidity of the monitoring reaction liquid is generally obtained by means of experience, pH test paper, and acidity meter. Since the accuracy of control depends on test paper or empirical judgment, there is a certain hysteresis of manual control, so good control effects are often not obtained. In addition, due to the strong corrosiveness of high-concentration acid...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22B3/02C22B3/06
CPCY02P10/20
Inventor 李震曦杨跃新蔡练兵曹永德曹永贵
Owner CHENZHOU CITY JINGUI SILVER IND CO LTD
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